79 lines
2.3 KiB
C
79 lines
2.3 KiB
C
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/*
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* Copyright 2010 Stefan Lankes, Chair for Operating Systems,
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* RWTH Aachen University
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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* Standard x86 syscalls for user programs running under MetalSVM
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*/
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#ifndef __SYSCALL_H__
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#define __SYSCALL_H__
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#ifdef __cplusplus
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extern "C" {
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#endif
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#define __NR_exit 0
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#define __NR_write 1
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#define __NR_open 2
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#define __NR_close 3
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#define __NR_read 4
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#define __NR_lseek 6
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#define __NR_unlink 7
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#define __NR_getpid 8
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#define __NR_kill 9
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#define __NR_fstat 10
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#define __NR_sbrk 11
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#define __NR_fork 12
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#define __NR_wait 13
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#define __NR_execve 14
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#define __NR_times 15
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#define _STR(token) #token
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#define _SYSCALLSTR(x) "int $" _STR(x) " "
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#define INT_SYSCALL 0x80
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inline static long
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syscall(int nr, unsigned long arg0, unsigned long arg1, unsigned long arg2,
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unsigned long arg3, unsigned long arg4)
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{
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long res;
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asm volatile (_SYSCALLSTR(INT_SYSCALL)
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: "=a" (res)
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: "0" (nr), "b" (arg0), "c" (arg1), "d" (arg2), "S" (arg3), "D" (arg4)
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: "memory", "cc");
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return res;
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}
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#define SYSCALL0(NR) \
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syscall(NR, 0, 0, 0, 0, 0)
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#define SYSCALL1(NR, ARG1) \
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syscall(NR, (unsigned long)ARG1, 0, 0, 0, 0)
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#define SYSCALL2(NR, ARG1, ARG2) \
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syscall(NR, (unsigned long)ARG1, (unsigned long)ARG2, 0, 0, 0)
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#define SYSCALL3(NR, ARG1, ARG2, ARG3) \
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syscall(NR, (unsigned long)ARG1, (unsigned long)ARG2, (unsigned long)ARG3, 0, 0)
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#define SYSCALL4(NR, ARG1, ARG2, ARG3, ARG4) \
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syscall(NR, (unsigned long)ARG1, (unsigned long)ARG2, (unsigned long)ARG3, (unsigned long) ARG4, 0)
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#define SYSCALL5(NR, ARG1, ARG2, ARG3, ARG4) \
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syscall(NR, (unsigned long)ARG1, (unsigned long)ARG2, (unsigned long)ARG3, (unsigned long) ARG4, (unsigned long) ARG5)
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#ifdef __cplusplus
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}
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#endif
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#endif
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